[" Find: "],[" (i) "(7)/(3)-:2]

Find : (i) 2.7-:100

Evaluate: (i) |{:(6, -3), (7, -2):}| " " (ii) |{:(x^(2)-x +1, x-1),(x+1, x+1):}|

Evaluate : (i) (3)/(7)+(-4)/(9)-(-11)/(7)-(7)/(9)

Evaluate : (i) (3)/(7)+(-4)/(9)+(-11)/(7)+(7)/(9)

If A=[{:(1,0),(-1,7):}]" and "B=[{:(0,4),(-1,7):}] , find (3A^(2)-2B+I).

Find the multiplicative inverse of the following: (i) 3+4i (ii) (5-7i)^(2) .

(i) Find a and b when (3+ sqrt(7)) /(3-sqrt(7))= (a+bsqrt(7))

If sum_(i=1)^(7) i^(2)x_(i) = 1 and sum_(i=1)^(7)(i+1)^(2) x_(i) = 12 and sum_(i=1)^(7)(i+2)^(2)x_(i) = 123 then find the value of sum_(i=1)^(7)(i+3)^(2)x_(i)"____"

If sum_(i=1)^(7) i^(2)x_(i) = 1 and sum_(i=1)^(7)(i+1)^(2) x_(i) = 12 and sum_(i=1)^(7)(i+2)^(2)x_(i) = 123 then find the value of sum_(i=1)^(7)(i+3)^(2)x_(i)"____"

Evaluate the following using identities: (i) (105)^(2) (ii) (47)^(2) (iii) (8.3 xx 7.7)